Cop-hating director Quentin Tarantino has blue blood — three of his relatives served in the NYPD, including one who was shot in the line of duty, The Post has learned. The National Association of Police Organizations is joining the call to boycott Quentin Tarantino’s movies after the director took part in a protest against police brutality in New York City on Saturday.The group, which describes itself as representing 1,000 police units and associations and over 241,000 sworn law enforcement officers, has told its members that it supports the boycott — which emerged after Tarantino referred to officers as “murderers.” It also asserted that officers should not work for any future Tarantino projects. “We ask officers to stop working special assignments or off-duty jobs, such as providing security, traffic control or technical advice for any of Tarantino’s projects,” a statement on NAPO’s website said.” We need to send a loud and clear message that such hateful rhetoric against police officers is unacceptable. Speaking at the main rally on Saturday, in New York’s Washington Square Park, Tarantino said he stood “on the side of the murdered,” adding that police often fell into the category of murderers. I’ve seen and heard the things they go through, and to see them so discredited like this is really sad,” Tony Tarantino told The Post. “The police getting such a bad rap, especially coming from my own son, is really sickening to me.

He suggested Tarantino’s rhetoric might lead to the murder of police officers. “It is hard not to see the anti-police rhetoric that has been stirred up in the nation over the past year. It would really be great if he issued a public apology for the statements he made.” The “Pulp Fiction” and “Kill Bill” director’s police lineage includes Anthony Massaro, a retired NYPD lieutenant who was a detective commander in the 9th Precinct in the East Village from 1991 to 2013. Lynch dubbed Tarantino a “cop-hater” and called on New Yorkers to “send a message to this purveyor of degeneracy that he has no business coming to our city to peddle his slanderous Cop Fiction.” One of the group’s organizers, Carl Dix, said in a statement, “The police threats against Quentin Tarantino amount to a mafia-style protection racket, only the payoff being demanded is toeing a political line, not cash. … Artists need to be able to express themselves on progressive causes without fear of retribution and attack.

I have to call a murder a murder, and I have to call the murderers the murderers.” The Weinstein Company, which is releasing “The Hateful Eight” on Christmas, has not responded to requests for comment about the speech and the reaction to it. Tarantino should be mindful of the potential dangers that can result from the dangerous rhetoric once it is ingrained in the mind of a person who is willing to harm an officer,” Colligan said. “Quentin Tarantino needs to understand that as a public figure his voice is one that people listen to. The men and women of the NYPD do a phenomenal job and don’t get enough credit.” Massaro also described how officers don’t need to take heat from celebrities like his cousin because they already have to deal with added pressures from the anti-police sentiment that has swept across the nation. “Whenever someone says something like [what Quentin said], it makes police officers’ jobs a lot harder,” he said. “It’s much more dangerous today than in my time. The police he is calling murderers are the same officers who were present along the protest route to ensure the safety of protesters, who provide security when he is filming, and who put their lives on the line to protect our communities day in and day out.”

Cops are not murderers, they are heroes.” Patrick Lynch, president of the New York police union and de facto leader of the anti-Tarantino movement, was pleased. In Philadelphia, a Fraternal Order of Police lodge representing 14,000 officers voted unanimously to join the boycott, with FOP President John McNesby calling Tarantino “anti-police” and accusing him of profiting from films that project “violence and respect for criminals” into the society.

While the director has not yet responded to criticism, Rise Up October organizers and participants have condemned the boycott of Tarantino as an attack on free speech. If he does apologize, it will be because he’s pressured into by studio bosses more upset about the controversy than he is, says Howard Bragman, veteran publicist and founder of 15 Minutes Public Relations. “Not only has Quentin Tarantino been through controversies, he kind of likes being that guy,” Bragman says. “I think Quentin is pretty OK with what he did. He wore a badge from 1951 to 1972 and was also a proud Army veteran who heroically stormed the beaches of Normandy in World War II, according to his obituary in Newsday.

Yes, there have been police officers guilty of crimes, but you can’t condemn a whole department just because of a few bad apples.” The 52-year-old director has targeted police in his movies — including the 1992 film “Reservoir Dogs,” in which a cop is tortured, mutilated and killed. “Quentin is a phenomenal talent, a filmmaking genius,” his dad said. “I can still respect his art.